Question: 3. Let u : P(N) [0, c0) be the function defined by. (A) = no of elements in A Show that u is o-finite

3. Let u : P(N) [0, c0) be the function defined by.

3. Let u : P(N) [0, c0) be the function defined by. (A) = no of elements in A Show that u is o-finite but not finite.

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